Q# 9-10: Please find the following values using right angle triangles. When no quadrant is given, one assumes trig functions are positive (i.e. Quadrant I). If quadrant given, then need CAST rule. Q.#9 Ife is an angle of a right angle triangle with sine=12/13 and <6
Q# 9-10: Please find the following values using right angle triangles. When no quadrant is given, one assumes trig functions are positive (i.e. Quadrant I). If quadrant given, then need CAST rule. Q.#9 Ife is an angle of a right angle triangle with sine=12/13 and <6
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Q# 9-10: Please find the following values using right angle triangles. When no quadrant is given, one
assumes trig functions are positive (i.e. Quadrant I). If quadrant given, then need CAST rule.
Q.#9 Ife is an angle of a right angle triangle with sine=12/13 and << please do the following.
Hint: Quadrant given so trig functions may be + or - !
a) Show prep work here (Triangle with sides labelled, Quadrant's CAST status if applies).
b) Find cos
c) Find csc
Q.#10 Using sin = 12/13 and << from Q. #9, please find the following.
Hint: You'll need the tricks from Q.#7 !
a) sin(-8)
b) cos(-0)
c) sec(0-2π)
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